A bigger SSD may be faster but that depends on the model and design.
There are adapters to use the optical drive as a tray for a SSD/HDD like this one: https://www.amazon.com/Protronix-Optical-Drive-Universal-12-7mm/dp/B004XIU4T2
But you will need to measure the height of the DVD drive, some laptops use a 9.5mm drive and not a 12.7mm drive so you would need a 9.5mm adapter instead like this: https://www.amazon.ca/JacobsParts®-9-5mm-Optical-Drive-Adapter/dp/B004XIUQYA
Or just get a 480GB or bigger SSD or store some of the stuff on an external drive. You can place the old drive into an enclosure like this: http://www.newegg.com/Product/Produ...ATCH&Description=usb+3.0+2.5"&N=-1&isNodeId=1
There are adapters to use the optical drive as a tray for a SSD/HDD like this one: https://www.amazon.com/Protronix-Optical-Drive-Universal-12-7mm/dp/B004XIU4T2
But you will need to measure the height of the DVD drive, some laptops use a 9.5mm drive and not a 12.7mm drive so you would need a 9.5mm adapter instead like this: https://www.amazon.ca/JacobsParts®-9-5mm-Optical-Drive-Adapter/dp/B004XIUQYA
Or just get a 480GB or bigger SSD or store some of the stuff on an external drive. You can place the old drive into an enclosure like this: http://www.newegg.com/Product/Produ...ATCH&Description=usb+3.0+2.5"&N=-1&isNodeId=1